Toy building brick



FIG. 1 is a top front isometric view of a toy building brick showing my new design;

FIG. 2 is a top rear isometric view of the toy building brick;

FIG. 3 is a front view of the toy building brick;

FIG. 4 is a rear view of the toy building brick;

FIG. 5 is a top view of the toy building brick;

FIG. 6 is a bottom view of the toy building brick; and,

FIG. 7 is a rear isometric view of the toy building brick.

The broken lines shown are included for the purpose of illustrating portions of the article which form no part of the claimed design. 

CLAIM The ornamental design for a toy building brick, as shown and described. 